Spent a whole shift chasing a phantom hydraulic leak on a 737
I mean, it was supposed to be a simple check. We had a write-up for a small hydraulic leak on a 737-800, and I figured it was a loose line or a bad seal. I spent the first hour cleaning the area, but the leak was so slow I couldn't even see where it was coming from. I used dye and a black light, and nothing. My lead told me to pressure it up and watch, so I did that for like three hours. I finally spotted a tiny, tiny seep from a valve body flange that was only wetting when the system was hot and under full pressure. What should have been a 30-minute job turned into an 8-hour shift just to find the source. Has anyone else had a leak that just refused to show itself until you did something super specific?